This section illustrates you to determine when a Preference Node is added or removed.

Determining When a Preference Node Is Added or Removed

     

This section illustrates you to determine when a Preference Node is added or removed. You can see in the given example that we have add a new node by using the method userRoot().node("/Hello World"). The method exportSubtree(System.out) will show you the added node in the Preference tree. In order to remove the added node, we have used the method removeNode() which removes this preference node and display the message on the console.

Here is the code of AddedOrRemoved.java

 

 

 

 

 

import java.util.prefs.*; public class AddedOrRemoved{ public static void main(String []args) throws Exception{ Preferences child = Preferences.userRoot().node("/Hello World");   System.out.println("A new node is added");   child.exportSubtree(System.out);   try {   child.removeNode();  System.out.println("A new node is removed");  } catch (Exception e) {} } }

Output will be displayed as:

Download Source Code:

Related Tags for Determining When a Preference Node Is Added or Removed :
c,  reference,  io,  method,  user,  remove,  new,  rmi,  using,  this,  node,  oo,  move,  root,  example,  add,  to,  exam,  ref,  ld,  e,  il,  section,  can,  use,  ce,  dde,  in,  no,  rm,  m,  tr,  min,  ca,  dd,  min,  ad,  es,  em,  me,  rate,  rates,  refer,  xa,  when,  xamp,  s,  term,  ee,  at,  added,  is,  hello,  ha,  ll,  iv,  mpl,  pre,  str,  s,  s,  ren,  th,  av,  st,  hello,  hat,  fe,  eterm,  eterm,  ple,  pl,  pr,  preference,  mov,  mi,  ode,  on,  o

More Tutorials from this section

• Java util package Examples
• Export System Preferences
• Exporting the User Type Preferences in a Subtree of Preference Node
• Determining the actual age from date of birth in Java
• Collection : ArrayList Example
• Converting an Array to a Collection
• Associate a value with an object
• Multiple Value initialization and retrieval by put and get method
• The BitSet class
• Breaking the String into Words
• Calculate process time in Java
• Using the Captured Text of a Group within a Replacement Pattern
• Capturing Text in a Group in a Regular Expression
• Scheduling a Timer Task
• Clone method example in Java
• clone method in Java
• Collection Iterate Example
• Collections Framework
• Converting Collection to an Array
• Collection to Array